Thanks for the response,
Yes, i actually changed positions moving the left speaker to the right and vise versa...(same speaker continued to show the problem) tried different amp channels, played around with the connector to ensure that they were tight. It's too bad the woofer is downward pointing inside the box because it would be nice to have easy access to check for a partially torn surround or a loose connection...in any even i have been pointed in the right direction from Kef's distributor in Canada. I have been i contact with the repair facility that they have recommended. To be safe i'm not going to mess with it...i'll take it in next week so they can fix it.